在乌兰哈达第四纪火山地质考察基础上，特别是对已破坏的火山尽可能恢复其原貌，开展系统的火山岩Ar-Ar法定年，划分火山喷发期次，恢复其火山活动历史。通过火山岩岩石学、主微量元素、Sr、Nd、Pb、U、Th同位素与锆石U-Th同位素定年，研究地幔源区特征、岩浆滞留时间与岩浆演化过程，探讨乌兰哈达火山活动规律，以及大兴安岭－太行山重力梯度带及其跨越的兴蒙造山带与华北克拉通之间岩石圈演化差异。

On the basis of Quaternary volcanic field survey on Wulanhada area of Inner Mongolia, especially on the evanescing volcanoes under human mining activities, 40Ar/39Ar dating will be systematically employed on the volcanic rocks for the purpose of identifying eruption stages and regaining volcano active history in this field. In conjunction with study on volcanic petrology, major and trace elements, isotopes (Sr, Nd, Pb, U, Th) and zircon U-Th isotopic dating, the mantle source characteristics and magma stagnant time in chamber will be constrained. The research is expected to shed new light on the inherent laws of volcanic activity, expose lithospheric variation near the Daxin'anling-Taihangshan gravity lineament , as well as lithospheric differentiation between Xing'an-Mongolian orogenic belt and North China Craton.